Power-flow-based design strategy for Bloch surface wave biosensors

Degli-Eredi, Iterio; Sipe, J. E.; Vermeulen, Nathalie

doi:10.1364/ol.43.001095

Cited by 7 publications

(3 citation statements)

References 17 publications

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“…, which can be calculated numerically using matrix method methods 7 . Analysis of Equation ( 4) reveals some interesting properties of the refractometric sensitivity, in particular of the dependence with the incident angle.…”

Section: Sensitivity Analysis Of Bloch Surface Wavesmentioning

confidence: 99%

“…This mechanism is the principle associated with conventional biosensing applications of ESW based sensors, and has been thoroughly explored in SPR sensors, both theoretically 6 and experimentally 3 . Nevertheless, while there have already been a few publications tackling the optimization of BSW design 7,8 , much research is still needed to fully understand the role of the design parameters of the PhC in the final BSW performance.…”

Section: Introductionmentioning

confidence: 99%

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Photonic Crystal Design for Bloch Surface Wave Sensing

Dias

Almeida

Coelho

2022

J. Phys.: Conf. Ser.

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Bloch Surface Waves (BSW) consist of electromagnetic modes generated at the interface between a photonic crystal and an isotropic dielectric. This type of surface mode displays sharp resonances and high sensitivity to external refractive index variations, and thus appears to be an ideal candidate for usage in optical sensors. Nevertheless, design and optimization of photonic crystals is not a trivial task and constitutes an ongoing field of research. The sensitivity of BSW in both refractometric and adsorption sensing is calculated analytically using first-order perturbation theory for TE modes, allowing the understanding of how several physical parameters of the photonic crystal influence the sensitivity. Preliminary experimental results are presented, which aim to use the analytical calculations to allow for both refractometric and adsorption sensing in a single photonic crystal structure.

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Section: Sensitivity Analysis Of Bloch Surface Wavesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Photonic Crystal Design for Bloch Surface Wave Sensing

Dias

Almeida

Coelho

2022

J. Phys.: Conf. Ser.

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“…The thickness of the double layer should be pre-calculated in advance in order to maximize a photonic band gap at these predetermined wavelength and wavevector, since the confinement of the PC SM near the interface is the result of the photonic band gap on one side and the total internal reflection (TIR) on another side of the interface. Various approaches and strategies have been proposed to find the optimal parameters of the 1D PC structure and the thickness of the terminated layer [31][32][33][34]. Here, to solve this problem, we present a free Windows program [35] based on an impedance approach, which was used in [36,37].…”

Section: Introductionmentioning

confidence: 99%

Design of 1D Photonic Crystals Sustaining Optical Surface Modes

Konopsky

2022

Coatings

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An impedance approach has been implemented to design truncated 1D photonic crystals, sustaining optical surface modes, with any predetermined wavelength and wavevector. The implementation is realized as a free Windows program that calculates both the thicknesses of the double layers and the thickness of the final truncated layer at given refractive indices of the layers. The dispersion of the refractive indices can be given in the form of the Sellmeier/Drude formulas or in the form of a wavelength-n-k table. For mixed layers, the Maxwell Garnett theory can be used. This approach is suitable for studying and visualizing the field distribution inside photonic crystals, dispersion, and other aspects of the designed structures that sustain optical surface modes. Therefore, this program should promote scientific development and implementation of practical applications in this area.

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